Update WIT in tests with async

Coupled with bytecodealliance/wit-bindgen#1278

Author: alexcrichton

Cargo.lock

@@ -608,9 +608,9 @@ wit-component = { git = "https://github.com/bytecodealliance/wasm-tools" }
 wasm-wave = { git = "https://github.com/bytecodealliance/wasm-tools" }
 wasm-compose = { git = "https://github.com/bytecodealliance/wasm-tools" }
 wasm-metadata = { git = "https://github.com/bytecodealliance/wasm-tools" }
-wit-bindgen = { git = "https://github.com/bytecodealliance/witx-bindgen" }
-wit-bindgen-rt = { git = "https://github.com/bytecodealliance/witx-bindgen" }
-wit-bindgen-rust-macro = { git = "https://github.com/bytecodealliance/witx-bindgen" }
+# wit-bindgen = { git = "https://github.com/bytecodealliance/witx-bindgen" }
+# wit-bindgen-rt = { git = "https://github.com/bytecodealliance/witx-bindgen" }
+# wit-bindgen-rust-macro = { git = "https://github.com/bytecodealliance/witx-bindgen" }
 
 # wasmparser = { path = '../wasm-tools/crates/wasmparser' }
 # wat = { path = '../wasm-tools/crates/wat' }
@@ -624,6 +624,6 @@ wit-bindgen-rust-macro = { git = "https://github.com/bytecodealliance/witx-bindg
 # wasm-wave = { path = '../wasm-tools/crates/wasm-wave' }
 # wasm-compose = { path = '../wasm-tools/crates/wasm-compose' }
 # wasm-metadata = { path = '../wasm-tools/crates/wasm-metadata' }
-# wit-bindgen = { path = '../wit-bindgen/crates/guest-rust' }
-# wit-bindgen-rt = { path = '../wit-bindgen/crates/guest-rust/rt' }
-# wit-bindgen-rust-macro = { path = '../wit-bindgen/crates/guest-rust/macro' }
+wit-bindgen = { path = '../wit-bindgen/crates/guest-rust' }
+wit-bindgen-rt = { path = '../wit-bindgen/crates/guest-rust/rt' }
+wit-bindgen-rust-macro = { path = '../wit-bindgen/crates/guest-rust/macro' }

Cargo.toml

@@ -11,7 +11,7 @@ interface handler {
   ///
   /// When imported, this function may be used to either send an outgoing
   /// request over the network or pass it to another component.
-  handle: func(
+  handle: async func(
     request: request,
   ) -> result<response, error-code>;
 }